EP 1272553 A2 20030108 - PROCESS FOR DEVULCANIZING PARTICULATE RUBBER
Title (en)
PROCESS FOR DEVULCANIZING PARTICULATE RUBBER
Title (de)
VERFAHREN ZUR DEVULKANISIERUNG VON GUMMI
Title (fr)
TRAITEMENTS DE COMBINAISON BIOLOGIQUE ET PAR MICRO-ONDES DE PRODUITS EN CAOUTCHOUC USES
Publication
Application
Priority
- US 0111407 W 20010404
- US 54239400 A 20000404
Abstract (en)
[origin: WO0174933A2] A process and resulting product is provided in which a vulcanized solid particulate, such as vulcanized crumb rubber, has select chemical bonds altered by biotreatment with thermophillic microorganisms selected from natural isolates from hot sulfur springs. Following the biotreatment, microwave radiation is used to further treat the surface and to treat the bulk interior of the crumb rubber. The resulting combined treatments render the treated crumb rubber more suitable for use in new rubber formulations. As a result, larger loading levels and sizes of the treated crumb rubber can be used in new rubber mixtures and good properties obtained from the new recycled products.
IPC 1-7
IPC 8 full level
C08J 11/18 (2006.01)
CPC (source: EP US)
C08J 11/105 (2013.01 - EP US); C08J 2319/00 (2013.01 - EP US); C08J 2321/00 (2013.01 - EP US); Y02W 30/62 (2015.05 - EP US)
Citation (search report)
See references of WO 0174933A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0174933 A2 20011011; WO 0174933 A3 20020221; AU 4993001 A 20011015; EP 1272553 A2 20030108; US 6407144 B1 20020618
DOCDB simple family (application)
US 0111407 W 20010404; AU 4993001 A 20010404; EP 01923217 A 20010404; US 54239400 A 20000404